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प्रश्न
Why are road accidents at high speeds very much worse than road accidents at low speeds ?
उत्तर
It is a common observation that road accidents due to vehicles travelling at high speeds are much worse than those with vehicles at low speeds. This is because the momentum of vehicles running at greater speeds is very high and causes a lot of damage to the vehicles and injures the passengers during the collision.
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संबंधित प्रश्न
What is the usual name of the forces which cannot produce motion in a body but only change its shape ?
Fill in the following blank with suitable word :
When a stationary car starts suddenly, the passengers are jerked …………………..
Which of the two, balanced forces or unbalanced forces, can change the shape of an object ? Give an example to illustrate your answer.
Give reason for the following :
When a hanging carpet is beaten with a stick, the dust particles start coming out of it.
Explain why, it is dangerous to jump out of a moving bus.
Give one example where a force changes the shape (and size) of a body.
What is the unit of force ?
When we talk of a force acting on a body, it usually means :
Which of the following effect cannot be produced by an unbalanced force acting on a body?
Why does it happen?
If a stationary bus suddenly speeds up, passengers are thrown in the backward direction.
